Three additional chapters of Held Fast.. Chapters 1+2 are canon, these are three chapters which were produced but scrapped. Held Fast underwent rewrites in late 2023 to be suitable for long-term publication. These are chapters produced before said rewrites.

Publication information
| Status | Completed |
| Year | 2023 |
| Original Language | English |
| Content Rating | All Audiences |
| Format | Manga |
| Reading Direction | Left to Right |
![Held Fast [PROTOTYPE]](https://uploads.namicomi.com/covers/8RY8cc6e/f5d76bd1-f69c-4ff1-b6c1-85bef013d7a1.jpg.512.jpg)